221716

Ammonium oxalate monohydrate

ACS reagent, ≥99%

• Synonyme(s) : Oxalic acid diammonium salt
• Formule linéaire : (NH₄)₂C₂O₄ · H₂O
• CAS Number: 6009-70-7
• Poids moléculaire : 142.11
• Beilstein: 3759830
• Numéro CE : 238-135-4
• Numéro MDL: MFCD00149694
• Code UNSPSC : 12352300
• ID de substance PubChem : 329752279
• Nomenclature NACRES : NB.24

Propriétés

• Qualité: ACS reagent
• Niveau de qualité: 200
• Pression de vapeur: <0.1 hPa ( 20 °C)
• Essai: ≥99%; 99.0-101.0% (ACS specification)
• Forme: crystalline powder; crystals or granules
• Impuretés: ≤0.005% insolubles
• Résidus de calcination: ≤0.02%
• pH: 6-7 (25 °C, 14.2 g/L)
• Pf: 133 °C (dec.) (lit.)
• Traces d'anions: chloride (Cl^-): ≤0.002%; sulfate (SO₄^2-): ≤0.002%
• Traces de cations: Fe: ≤2 ppm; heavy metals: ≤5 ppm (by ICP)
• Chaîne SMILES: OC(C(O)=O)=O.N.O.N
• InChI: 1S/C2H2O4.2H3N.H2O/c3-1(4)2(5)6;;;/h(H,3,4)(H,5,6);2*1H3;1H2
• Clé InChI: MSMNVXKYCPHLLN-UHFFFAOYSA-N

Description

Description générale

Ammonium oxalate monohydrate is a diammonium salt of oxalic acid. Its refined crystal structure has been investigated by three-dimensional diffraction studies. Influence of bivalent [Mn(II), Co(II), Ni(II)] and trivalent cations [Fe(III), Cr(III)] impurities on the growth rates of ammonium oxalate monohydrate crystals has been described. Its space group and unit cell parameters have been analyzed by neutron diffraction studies. Its IR spectra have been compared with that of isolated coal-solubilizing agent (CSA).

Application

Ammonium oxalate monohydrate may be used in the preparation of tetramethylammonium oxalate.

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H302,H319
• Conseils de prudence: P264 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313 - P501
• Classification des risques: Acute Tox. 4 Oral - Eye Irrit. 2
• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable